Product Specs: - Compatible replacement cap for Nalgene water bottles - Leak-proof design to prevent spills - Easy to screw on and off for convenience Technical Information: - Fits standard Nalgene wide-mouth bottles - Durable construction ensures long-lasting use - BPA-free and safe for drinking water Fabric/Material Details: - Made from high-quality, food-grade plastic - Resistant to cracks and wear from daily use Fabric Care Instructions: - Hand wash recommended for prolonged durability - Dishwasher safe on top rack - Avoid exposure to extreme temperatures for best performance